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System classification
Heat pump
Type of pipe/product
Flexible line
Sales unit
Meter
Range
FLEXSTAR DUO pipe
Type of insulation
Cyclopentane-blown PUR foam
Article number
Designation
Outer diameter inner pipe
mm
Nominal diameter inner pipe
mm
Outer diameter casing
mm
LOD-Level
Operating temperature maximum
95 °C
Operating pressure maximum
6 bar
Thermal conductivity of insulation
0.024 W/mK
Heat loss
W/mK
Weight
kg/m
Minimum winding radius
m
Maximum delivery length
m
Description
PUR thermal conductivity of the insulation 1
0.38 W/mK
PUR thermal conductivity of the insulation 2
0.38 W/mK
PEX value tear strength
Minimum 18 N/mm²
PEX standards tear strength
ISO 6259
PEX linear expansion coefficient
1.4 * 10 E-4 1/K
PEX standards chemical resistance
DIN 8075 B.1
PUR value density
>50 kg/m³
PUR standards density
EN 253
PUR value axial shear strength
>90 kPa
PUR standards axial shear strength
EN 15632-2
PUR thermal conductivity of the insulation
0.0234 W/mK
PUR standards conductivity
EN 253 / ISO 8497
PUR value water absorption
<10 %
PUR standards water absorption
EN 15632-1
LLDPE value density
918-922 kg/m³
LLDPE standards density
EN 253
LLDPE standards conductivity
EN 253 / ISO 8497
Pressure losses
According to the pressure loss diagram
Volume inner tube
0.32 / 0.32 l/m
Typical insulation thickness
12.4 mm
Outer diameter insulation
85.8 mm
Outside diameter casing pipe
90 mm
Inner diameter carrier pipe
20.4 mm
Wall thickness carrier pipe
2.3 mm
Manufacturer
BRUGG Pipes
URL
https://www.bruggpipes.com/en/flexstar-duo/
Reaction to fire
Building material class B2 (normally flammable)
Additional Information
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